Let's divide 21201967 by 231
We want to divide 21201967 by 231.

Moving on to step 1:
When dividing 2 by 231, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 231

Let's proceed to step 2:
231 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Take the next digit (2) from the dividend and append it to 21, then repeat: 212 / 231

Step 3:
The number 231 fits into 212 0 times, leaving a remainder of 212.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 212, we end up with 212.
Grab the next digit (0) from the dividend, add it to 212, then carry on: 2120 / 231

Advancing to step 4:
The number 231 fits into 2120 9 times, leaving a remainder of 41.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 2079 from 2120, we get 41.
Include the next digit (1) from the dividend after 41, then repeat: 411 / 231

Going ahead to step 5:
If we divide 411 by 231, we get 1 and a remainder of 180.
Put 1 as the next digit of the answer. 
Result so far: 91.0
If we subtract 231 from 411, we get 180.
Bring next digit (9) of the dividend behind the 180 and repeat the process: 1809 / 231

On to step 6:
1809 divided by 231 is 7 with a remainder of 192.
The next digit of our result is 7. 
Result so far: 917.0
Subtract 1617 from 1809 to get 192.
Take the next digit (6) from the dividend and append it to 192, then repeat: 1926 / 231

Moving on to step 7:
The number 231 fits into 1926 8 times, leaving a remainder of 78.
Write down 8 as next digit of the result. 
Result so far: 9178.0
The remainder is 78 after subtracting 1848 from 1926.
Include the next digit (7) from the dividend after 78, then repeat: 787 / 231

Step 8:
787 divided by 231 is 3 with a remainder of 94.
Put 3 as the next digit of the answer. 
Result so far: 91783.0
Subtract 693 from 787 to get 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Step 9:
231 goes into 940 4 times with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 91783.4
Subtracting 924 from 940 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 10:
231 can be fit into 160 0 times, resulting in a remainder of 160.
Use 0 as the next digit of our solution. 
Result so far: 91783.4
Subtracting 0 from 160 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 11:
231 can be fit into 1600 6 times, resulting in a remainder of 214.
Record the quotient 6 as the next digit in the result. 
Result so far: 91783.406
If we take 1386 away from 1600, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Going ahead to step 12:
231 goes into 2140 9 times with a remainder of 61.
The next digit of our result is 9. 
Result so far: 91783.4069
Subtracting 2079 from 2140 leaves us with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 13:
610 divided by 231 is 2 with a remainder of 148.
The number 2 becomes the next digit in our result. 
Result so far: 91783.40692
Subtracting 462 from 610 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Going ahead to step 14:
231 can be fit into 1480 6 times, resulting in a remainder of 94.
The next digit of our result is 6. 
Result so far: 91783.406926
The remainder is 94 after subtracting 1386 from 1480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Let's proceed to step 15:
940 divided by 231 is 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 91783.4069264
Subtracting 924 from 940 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 16:
231 goes into 160 0 times with a remainder of 160.
The next digit of our result is 0. 
Result so far: 91783.4069264
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The final outcome is 91783.4069264, with a leftover of 1.6e-07.